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Questions and Answers
An organic nutrient essential to an organism's metabolism that cannot be synthesized itself is termed a/an:
An organic nutrient essential to an organism's metabolism that cannot be synthesized itself is termed a/an:
- trace element
- essential nutrient
- micronutrient
- growth factor (correct)
An organism that can synthesize all its required organic components from CO2 using energy from the sun is a:
An organism that can synthesize all its required organic components from CO2 using energy from the sun is a:
- chemoheterotroph
- photoautotroph (correct)
- photoheterotroph
- chemoautotroph
An obligate halophile requires high:
An obligate halophile requires high:
- pH
- pressure
- salt (correct)
- temperature
Chemoautotrophs can survive on:
Chemoautotrophs can survive on:
A substance that would be moved by passive transport is:
A substance that would be moved by passive transport is:
Superoxide ion is toxic to strict anaerobes because they lack:
Superoxide ion is toxic to strict anaerobes because they lack:
Study Notes
Essential Nutrients
- An organic nutrient essential to an organism's metabolism that cannot be synthesized itself is termed a essential nutrient.
Autotrophs
- An organism that can synthesize all its required organic components from CO2 using energy from the sun is a photoautotroph.
Halophiles
- An obligate halophile requires high salt.
Chemoautotrophs
- Chemoautotrophs can survive on minerals and CO2.
Passive Transport
- Substances that would be moved by passive transport include sugar, water, amino acid, and salt.
Antioxidant Enzymes
- Superoxide ion is toxic to strict anaerobes because they lack catalase, peroxidase, or dismutase.
Biosynthesis
- Biosynthesis is another term for anabolism.
Enzymes
- An enzyme lowers the activation energy required for a chemical reaction.
- An enzyme catalyzes the chemical reaction.
Apoenzyme
- An apoenzyme is the location where the cofactor is bound.
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Description
Understand the concepts of essential nutrients, autotrophs, halophiles, and chemoautotrophs in biology, including how they synthesize and survive on various substances. Learn about passive transport and its role in cellular metabolism.
